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An array coaxial vacuum arc thruster device

A vacuum arc and array technology, which is applied in the field of array coaxial vacuum arc thruster device, can solve the problems that the traditional propulsion system cannot meet the platform usage requirements of micro-nano satellites, and achieve the effect of prolonging the service life

Active Publication Date: 2021-07-23
遨天科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to limited power, volume and weight and other conditions and factors, traditional propulsion systems cannot meet the needs of micro-nano-satellite platforms

Method used

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  • An array coaxial vacuum arc thruster device
  • An array coaxial vacuum arc thruster device
  • An array coaxial vacuum arc thruster device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 It is a composition diagram of the thruster head in the array coaxial vacuum arc thruster device, including an anode 1, a casing 2, a spring 3, a cathode 4 and an insulator 5. The satellite will be subject to different gravitational resistance and air resistance at different altitudes, etc. According to the resistance and flight speed requirements, the total thrust required at different stages is obtained, and then the discharge is determined according to the thrust generated by each thruster head. the number of thruster heads;

[0039] For example, if the total thrust needs to be increased after the micro-nano satellite is de-orbited, 16 thruster heads need to be turned on through the pulse control module. During the climbing process, as the resistance decreases, the total thrust required to maintain the same speed decreases. At this time, through The feedback signal of the pulse discharge module regulates the pulse control module, so that the regulation puls...

Embodiment 2

[0041] Among them, the working process of the position keeping flight task is as follows:

[0042] The position maintenance of the satellite is mainly the maintenance of the east-west position and the north-south position. For example, when the satellite position deviates to the north, the deviation signal will be transmitted to the power module. The pulse control module, the pulse control module transmits the rectangular signal to the switch drive module, the switch drive module transmits the drive information to the pulse discharge module, and the pulse discharge module provides discharge power to drive the thruster module to work, thereby realizing the task of the satellite's southward deflection.

[0043] The array type described in the present invention is not limited to coaxial electric thrusters, but can also be used on stacked electric thrusters and annular electric thrusters;

[0044]The array type control mode of the present invention is controlled by a single-chip m...

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Abstract

The invention relates to an array type coaxial vacuum arc thruster device, which belongs to the technical field of micro-nano satellite electric propulsion. The number of thruster heads in the device is between 3 and 50; and there are various arrangements, which are collectively called arrays, such as circular arrangement, rectangular arrangement and triangular arrangement. The coaxial thruster head is composed of cylindrical anodes, insulators and cathodes arranged radially outwards in sequence. The external structure of the cathode increases the effective working fluid and improves the total thrust of the thruster; the cathode adopts a spring propulsion device, When the metal material on the end face of the cathode is ablated, the spring will push the cathode to move towards the far end face until the working fluid is ablated; this array coaxial vacuum arc thruster device can control the ignition timing through the CPU, and can be used according to It is required to produce different thrusts; the cooperation between a large number of thruster heads not only increases the service life of the electric thruster, but also makes it obtain a higher total impulse.

Description

technical field [0001] The invention relates to an array type coaxial vacuum arc thruster device, which belongs to the technical field of electric propulsion of microsatellites. Background technique [0002] The power sources of micro-nano satellites are mainly various propulsion systems such as cold air propulsion, chemical propulsion, electric propulsion, nuclear propulsion and antimatter propulsion, solar sail propulsion, beam energy propulsion, micro propulsion and tether propulsion, etc. Among them, the chemical propulsion system is currently the most commonly used propulsion system, and it has gradually matured from the single-component propulsion system to the dual-component propulsion system, and then to the dual-component dual-mode propulsion system. The space chemical propulsion system is mainly used in the orbit elevation mission of micro-nano satellites. During the orbit transfer phase, the chemical propulsion system needs to consume more than 80% of the total f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03H1/00
CPCF03H1/0081
Inventor 王红霞于新爱沈震宇
Owner 遨天科技(北京)有限公司